Derived roles are also called as Child Roles and Master
Roles are called as Parent Roles.

Derived Roles refers to the roles that already exist. As
name indicates Derived roles are derived from other role
(Master Role).

Derived ROles inherits the menu structure and functions
included (transactions, reports, Weblinks and so on) from
the role referenced.
The default authorization values of the derived role are
that of the inherited role. The Org Levels are to be
maintained in the derived Role

We need to login to the system the change has taken, Go to
SM20 you need to select the date and time or range in time
tab, select * in the user tab once you key in all the
inputs be sure to select the servers or instance on left
hand side and then execute.
you need to select the user master record.

You will get report for user master record, find the user
id in the list